won't see you in a couple days. >>> first lady michelle obama paid tribute to the four americans killed in tuesday's attacks at the consulate in benghazi, libya. they include chris stevens. this is what the michelle obama said. >> i want to take a moment to go how heartbroken barack and i are about the horrific tragedy that happened earlier this week in libya. it's important to say our hearts and prayers are with the families of those who gave their lives serving their country. >> the first load also said our thanks go out to all the americans serving around the world. >>> we continue to follow the escalating attentions in the middle east. embassies are warning of more protests tomorrow and telling americans to stay off the streets. right now in cairo hundreds of demonstrators are camped out near the u.s. embassy, and today on capitol hill cia director david petrus is briefing the senate intelligence committee on the situation. they're calling a full-fledged foreign policy crisis. mark murray joins us. mark, it's so interesting. my executive producer was talking about this article the o